summaryrefslogtreecommitdiffstats
path: root/test/Parser/recovery.cpp
blob: 2d5b518c691fe3317d9167ca62579097935a3795 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
// RUN: %clang_cc1 -verify -std=c++11 -fms-extensions %s

8gi///===--- recovery.cpp ---===// // expected-error {{unqualified-id}}
namespace Std { // expected-note {{here}}
  typedef int Important;
}

/ redeclare as an inline namespace // expected-error {{unqualified-id}}
inline namespace Std { // expected-error {{cannot be reopened as inline}}
  Important n;
} / end namespace Std // expected-error {{unqualified-id}}
int x;
Std::Important y;

extenr "C" { // expected-error {{did you mean 'extern'}}
  void f();
}
void g() {
  z = 1; // expected-error {{undeclared}}
  f();
}

struct S {
  int a, b, c;
  S();
  int x // expected-error {{expected ';'}}
  friend void f()
};
8S::S() : a{ 5 }, b{ 6 }, c{ 2 } { // expected-error {{unqualified-id}}
  return;
}
int k;
int l = k // expected-error {{expected ';'}}
constexpr int foo();

5int m = { l }, n = m; // expected-error {{unqualified-id}}

namespace MissingBrace {
  struct S { // expected-error {{missing '}' at end of definition of 'MissingBrace::S'}}
    int f();
  // };

  namespace N { int g(); } // expected-note {{still within definition of 'MissingBrace::S' here}}

  int k1 = S().h(); // expected-error {{no member named 'h' in 'MissingBrace::S'}}
  int k2 = S().f() + N::g();

  template<typename T> struct PR17949 { // expected-error {{missing '}' at end of definition of 'MissingBrace::PR17949'}}

  namespace X { // expected-note {{still within definition of 'MissingBrace::PR17949' here}}
  }
}

namespace N {
  int
} // expected-error {{unqualified-id}}

strcut Uuuu { // expected-error {{did you mean 'struct'}} \
              // expected-note {{'Uuuu' declared here}}
} *u[3];
uuuu v; // expected-error {{did you mean 'Uuuu'}}

struct Redefined { // expected-note {{previous}}
  Redefined() {}
};
struct Redefined { // expected-error {{redefinition}}
  Redefined() {}
};

struct MissingSemi5;
namespace N {
  typedef int afterMissingSemi4;
  extern MissingSemi5 afterMissingSemi5;
}

struct MissingSemi1 {} // expected-error {{expected ';' after struct}}
static int afterMissingSemi1();

class MissingSemi2 {} // expected-error {{expected ';' after class}}
MissingSemi1 *afterMissingSemi2;

enum MissingSemi3 {} // expected-error {{expected ';' after enum}}
::MissingSemi1 afterMissingSemi3;

extern N::afterMissingSemi4 afterMissingSemi4b;
union MissingSemi4 { MissingSemi4(int); } // expected-error {{expected ';' after union}}
N::afterMissingSemi4 (afterMissingSemi4b);

int afterMissingSemi5b;
struct MissingSemi5 { MissingSemi5(int); } // ok, no missing ';' here
N::afterMissingSemi5 (afterMissingSemi5b);

template<typename T> struct MissingSemiT {
} // expected-error {{expected ';' after struct}}
MissingSemiT<int> msi;

struct MissingSemiInStruct {
  struct Inner1 {} // expected-error {{expected ';' after struct}}
  static MissingSemi5 ms1;

  struct Inner2 {} // ok, no missing ';' here
  static MissingSemi1;

  struct Inner3 {} // expected-error {{expected ';' after struct}}
  static MissingSemi5 *p;
};

void MissingSemiInFunction() {
  struct Inner1 {} // expected-error {{expected ';' after struct}}
  if (true) {}

  // FIXME: It would be nice to at least warn on this.
  struct Inner2 { Inner2(int); } // ok, no missing ';' here
  k = l;

  struct Inner3 {} // expected-error {{expected ';' after struct}}
  Inner1 i1;

  struct Inner4 {} // ok, no missing ';' here
  Inner5;
}

namespace NS {
  template<typename T> struct Foo {};
}
struct MissingSemiThenTemplate1 {} // expected-error {{expected ';' after struct}}
NS::Foo<int> missingSemiBeforeFunctionReturningTemplateId1();

using NS::Foo;
struct MissingSemiThenTemplate2 {} // expected-error {{expected ';' after struct}}
Foo<int> missingSemiBeforeFunctionReturningTemplateId2();

namespace PR17084 {
enum class EnumID {};
template <typename> struct TempID;
template <> struct TempID<BadType> : BadType, EnumID::Garbage; // expected-error{{use of undeclared identifier 'BadType'}}
}

namespace pr15133 {
  namespace ns {
    const int V1 = 1;   // expected-note {{declared here}}
  }
  struct C1 {
    enum E1 { V2 = 2 }; // expected-note {{declared here}}
    static const int V3 = 3; // expected-note {{declared here}}
  };
  enum E2 {
    V4 = 4,   // expected-note {{declared here}}
    V6        // expected-note {{declared here}}
  };
  enum class EC3 { V0 = 0, V5 = 5 }; // expected-note {{declared here}}
  void func_3();

  void func_1(int x) {
    switch(x) {
    case 0: break;
    case ns::V1:: break; // expected-error{{'V1' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
    case C1::V2:: break; // expected-error{{'V2' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
    case C1::V3:: break; // expected-error{{'V3' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
    case V4:: break; // expected-error{{'V4' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
    case V6:: func_3();   // expected-error{{'V6' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
    }
  }
  void func_2(EC3 x) {
    switch(x) {
    case EC3::V0:  break;
    case EC3::V5:: break; // expected-error{{'V5' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
    }
  }

  template<class T> struct TS1 {
    typedef int A;
  };
  template<class T> void func(int x) {
    switch(x) {
    case TS1<T>::A:: break;  // expected-error{{expected unqualified-id}}
    }
  };
  void mainf() {
    func<int>(1);
  }

  struct S {
    static int n;  // expected-note{{declared here}}
    int nn;        // expected-note 2 {{declared here}}
  };

  int func_3(int x) {
    return x ? S::n :: 0;  // expected-error{{'n' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
  }
  int func_4(int x, S &s) {
    return x ? s.nn :: x;  // expected-error{{'nn' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
  }
  int func_5(int x, S &s) {
    return x ? s.nn :: S::n;  // expected-error{{'nn' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
  }

  struct S2 {
    struct S3;
  };

  struct S2 :: S3 :: public S2 {  // expected-error{{'public' cannot be a part of nested name specifier; did you mean ':'?}}
  };
}

namespace InvalidEmptyNames {
// These shouldn't crash, the diagnostics aren't important.
struct ::, struct ::; // expected-error 2 {{expected identifier}} expected-error 2 {{declaration of anonymous struct must be a definition}} expected-warning {{declaration does not declare anything}}
enum ::, enum ::; // expected-error 2 {{expected identifier}} expected-warning {{declaration does not declare anything}}
struct ::__super, struct ::__super; // expected-error 2 {{expected identifier}} expected-error 2 {{expected '::' after '__super'}}
struct ::template foo, struct ::template bar; // expected-error 2 {{expected identifier}} expected-error 2 {{declaration of anonymous struct must be a definition}} expected-warning {{declaration does not declare anything}}
struct ::foo struct::; // expected-error {{no struct named 'foo' in the global namespace}} expected-error {{expected identifier}} expected-error {{declaration of anonymous struct must be a definition}}
class :: : {} a;  // expected-error {{expected identifier}} expected-error {{expected class name}}
}